Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Mortessagne P"'
We carry out dynamical microwave transport experiments in aperiodic Vogel spiral arrays of cylinders with high dielectric permittivity. We experimentally disclose the electromagnetic modal structure of these structures in real space showing that they
Externí odkaz:
http://arxiv.org/abs/2307.12638
Localization of electronic wave functions in modern two-dimensional (2D) materials such as graphene can impact drastically their transport and magnetic properties. The recent localization landscape (LL) theory has brought many tools and theoretical r
Externí odkaz:
http://arxiv.org/abs/2210.00806
Publikováno v:
Phys. Rev. B 108, 064210 (2023)
The tight-binding model for a chain, where the hopping constants follow a Fibonacci sequence, predicts multifractality in the spectrum and wavefunctions. Experimentally, we realize this model by chains of small dielectric resonators with high refract
Externí odkaz:
http://arxiv.org/abs/2207.13755
Autor:
Jean-Christophe Helbling, Rachel Ginieis, Pierre Mortessagne, Mariano Ruiz-Gayo, Ioannis Bakoyiannis, Eva-Gunnel Ducourneau, Dominique Ciocca, Illona-Marie Bouleté, Alexandre Favereaux, Aurélia Ces, Enrica Montalban, Lucile Capuron, Freddy Jeanneteau, Guillaume Ferreira, Etienne Challet, Marie-Pierre Moisan
Publikováno v:
Molecular Metabolism, Vol 90, Iss , Pp 102061- (2024)
Objective: The early consumption of calorie-rich diet disrupts circadian rhythms and has adverse effects on memory, yet the effects of time-restricted feeding (TRF) and the underlying molecular mechanisms are unknown. Here, we set out to identify the
Externí odkaz:
https://doaj.org/article/d4b0a45b77af45649fb03628146faa82
Autor:
Pierre Mortessagne, Estelle Cartier, Maddalena Balia, Murielle Fèvre, Fiona Corailler, Cyril Herry, Djoher Nora Abrous, Arne Battefeld, Emilie Pacary
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract The dentate gyrus (DG) of the hippocampus is a mosaic of dentate granule neurons (DGNs) accumulated throughout life. While many studies focused on the morpho-functional properties of adult-born DGNs, much less is known about DGNs generated d
Externí odkaz:
https://doaj.org/article/f2e84f3379824686b3da5178d1b04747
Autor:
Davy, Matthieu, Besnier, Philippe, del Hougne, Philipp, de Rosny, Julien, Richalot, Elodie, Sarrazin, François, Savin, Dmitry V., Mortessagne, Fabrice, Kuhl, Ulrich, Legrand, Olivier
The passive estimation of impulse responses from ambient noise correlations arouses increasing interest in seismology, acoustics, optics and electromagnetism. Assuming the equipartition of the noise field, the cross-correlation function measured with
Externí odkaz:
http://arxiv.org/abs/2109.11912
Autor:
Suwunnarat, Suwun, Tang, Yaqian, Reisner, Mattis, Mortessagne, Fabrice, Kuhl, Ulrich, Kottos, Tsampikos
Publikováno v:
Commun Phys 5, 5 (2022)
We experimentally and theoretically challenge the concept of coherent perfect absorption (CPA) as a narrow frequency resonant mechanism associated with scattering processes that respect scale-invariance. Using a microwave platform, consisting of a lo
Externí odkaz:
http://arxiv.org/abs/2103.03668
Autor:
Eloy, Aurélien, Boughdad, Omar, Albert, Mathias, Larré, Pierre-Élie, Mortessagne, Fabrice, Bellec, Matthieu, Michel, Claire
We experimentally explore the rich variety of nonlinear coherent structures arising in a turbulent flow of superfluid light past an obstacle in an all-optical configuration. The different hydrodynamic regimes observed are organised in a unique phase
Externí odkaz:
http://arxiv.org/abs/2012.13280
Publikováno v:
Nature Communications 12, 3571 (2021)
Phase singularities appear ubiquitously in wavefields, regardless of the wave equation. Such topological defects can lead to wavefront dislocations, as observed in a humongous number of classical wave experiments. Phase singularities of wave function
Externí odkaz:
http://arxiv.org/abs/2006.08556
Autor:
Aubry, Geoffroy J., Froufe-Pérez, Luis S., Kuhl, Ulrich, Legrand, Olivier, Scheffold, Frank, Mortessagne, Fabrice
Publikováno v:
Phys. Rev. Lett. 125, 127402 (2020)
We present wave transport experiments in hyperuniform disordered arrays of cylinders with high dielectric permittivity. Using microwaves, we show that the same material can display transparency, photon diffusion, Anderson localization, or a full band
Externí odkaz:
http://arxiv.org/abs/2003.00913